Between animal and human medicine, there is no dividing line-nor should there be.

'Science in itself' is nothing, for it exists only in the human beings who are its bearers. 'Science for its own sake' usually means nothing more than science for the sake of the people who happen to be pursuing it.

The body is a cell state in which every cell is a citizen. Disease is merely the conflict of the citizens of the state brought about by the action of external forces.

The task of science is to stake out the limits of the knowable, and to center consciousness within them.

Cellular pathology is not an end if one cannot see any alteration in the cell. Chemistry brings the clarification of living processes nearer than does anatomy. Each anatomical change must have been preceded by a chemical one.

Brevity in writing is the best insurance for its perusal.

Laws should be made, not against quacks but against superstition.